DE726944C - Heating mold for retreading the treads of pneumatic rubber tires - Google Patents
Heating mold for retreading the treads of pneumatic rubber tiresInfo
- Publication number
- DE726944C DE726944C DEK158262D DEK0158262D DE726944C DE 726944 C DE726944 C DE 726944C DE K158262 D DEK158262 D DE K158262D DE K0158262 D DEK0158262 D DE K0158262D DE 726944 C DE726944 C DE 726944C
- Authority
- DE
- Germany
- Prior art keywords
- retreading
- treads
- rubber tires
- heating
- pneumatic rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
- B29D30/54—Retreading
Description
Heizformen zum Runderneuern der Laufflächen von Kautschukluftreifen, die aus zwei· gleichgestalteten, mit je einer Heizkammer versehenen Formringen bestehen, sind bekannt. Hierbei hat man bereits mit Luft- oder Wasserfüllung versehene Isolierkammern zur ■ Vermeidung der Hitzeübertragung auf nicht zu beheizende Reifenteile vorgesehen.Heating molds for retreading the treads of pneumatic rubber tires, which are made from two Identical shaped rings, each provided with a heating chamber, are known. Here you already have insulating chambers filled with air or water ■ Prevention of heat transfer to tire parts that are not to be heated is provided.
Wenn es sich darum handelt, die Hitzeübertragung beim Runderneuern, der Laufflächen von Kautschukluftreifen über die eigentliche Runderneuerungszone hinaus zu . verhindern, so sind die bekannten Heizformen unbrauchbar.When it comes to heat transfer when retreading, the treads of rubber tires beyond the actual retreading zone. prevent, so are the well-known forms of heating unusable.
Gegenstand der Erfindung ist nun eine solche aus zwei gleichgestalteien und mit je einer Heizkammer versehenen Formringen bestehende Heizform zum Runderneuern der Laufflächen von Kautschukluftreifen, die sich ao dadurch kennzeichnet, daß die. beiden Formringe mit einer tiefgehenden, bis nahe, an den Runderneuerungsteil heranreichenden wärmedämmenden Ringnut versehen sind, wobei diese Ringnut gegebenenfalls mit einem bekannten Isoliermittel· beschickt werden kann. Die tiefgehenden, bis nahe an den Runderneuerungsteil herangehenden wärmesperrenden Ringnute der Heizform bewirken, daß die Wärmeübertragung von den Heizkammern auf die Runderneuerungszone des Kautschukluftreifens beschränkt bleibt, so daß der übrige Teil der Luftreifenfläche in seiner Brauchbarkeit nicht beeinträchtigt wird. Diese Wirkung wird noch erhöht, wenn die Ringnute außerdem mit einem wärmesperrenden Isoliermittel beschickt werden.The subject of the invention is one of two identical designs and each A heating mold provided with a heating chamber for retreading the treads of rubber tires that are ao indicates that the. two shaped rings with a deep, to close, to the Retreading part approaching heat-insulating annular groove are provided, this annular groove optionally with a known one Isolating agent · can be charged. The deep ones, right up to the retread part Approaching heat-blocking annular grooves of the heating mold cause the heat transfer from the heating chambers remains limited to the retread zone of the pneumatic rubber tire, so that the remaining part of the tire surface is not impaired in its usability. These Effect is further increased if the ring grooves are also charged with a heat-blocking insulating agent.
Die Heizform zum Runderneuern der Laufflächen von Kautschukluftreifen gemäß der Erfindung ist in der Zeichnung veranschaulicht. 4„ Abb. ι zeigt einen Querschnitt durch einen Teil der Heizform.The heating mold for retreading the treads of pneumatic rubber tires according to Invention is illustrated in the drawing. 4 "Fig. Ι shows a cross section through a Part of the heating mold.
Abb. 2 zeigt eine andere Ausführung der Heizkammern undFig. 2 shows another embodiment of the heating chambers and
Abb. 3 ist ein Teilschnitt in Pfeilrichtung A von Abb. 1. *Fig. 3 is a partial section in the direction of arrow A from Fig. 1. *
Die aus zwei gleichgestalteten, mit je einer Heizkammer 3 bzw. 4 (Abb. 1) oder mit je einer Heizkammer 15 (Abb. 2) versehenen Formringen 1 und 2 bestehende Heizform, die in bekannter Weise unter Bildung von Isolierräumen 13 in einem Gehäuse 14 gelagert ist, hat an den Formringen 1 und 2 tiefgehende, bis nahe an den Rundemeuerungsteil 5 (Abb. 1 und 2) heranreichende wärmedämmende Ringnute 9. Diese Ringnuten 9 können gegebenenfalls zur Erhöhung der wärmesperrenden Wirkung mit einem Isoliermittel 12, z.B. Asbestoder Glaswolle, beschickt werden. Außerdem können innerhalb der Ringnute 9 Abstandsringe io zum Ausgleich etwa auftretender Spannungen vorgesehen sein, die durch Gewindeschrauben 11 festgehalten werden. In bekannter Weise sind die Innenflächen der beiden Formringe 1 und 2 dem Runderneuerungsteil S des Kautschukluftreifens 6 angepaßt, dem der an der Innensohle 7 der Heizform befindliche Heizschlauch 8 als Träger dient.The two of the same design, each with a heating chamber 3 or 4 (Fig. 1) or with each a heating chamber 15 (Fig. 2) provided mold rings 1 and 2 existing heating mold, the is stored in a known manner with the formation of isolation spaces 13 in a housing 14, has deep recesses on the shaped rings 1 and 2, right up to the rounding part 5 (Fig. 1 and 2) approaching heat-insulating annular grooves 9. These annular grooves 9 can optionally to increase the heat barrier effect with an insulating agent 12, e.g. asbestos or Glass wool. In addition, 9 spacer rings can be used within the annular groove io can be provided to compensate for any stresses that occur through threaded screws 11 are recorded. In a known manner, the inner surfaces are the two mold rings 1 and 2 adapted to the retreading part S of the pneumatic rubber tire 6, which the heating hose 8 located on the insole 7 of the heating mold serves as a carrier.
Claims (1)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK158262D DE726944C (en) | 1940-07-24 | 1940-07-24 | Heating mold for retreading the treads of pneumatic rubber tires |
| NL102007A NL55568C (en) | 1940-07-24 | 1941-07-05 | |
| FR874604D FR874604A (en) | 1940-07-24 | 1941-07-23 | Improvements made to heating molds to renovate the tread surface of tires for vehicle wheels on the periphery |
| BE442226D BE442226A (en) | 1940-07-24 | 1941-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK158262D DE726944C (en) | 1940-07-24 | 1940-07-24 | Heating mold for retreading the treads of pneumatic rubber tires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE726944C true DE726944C (en) | 1942-10-23 |
Family
ID=7253843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK158262D Expired DE726944C (en) | 1940-07-24 | 1940-07-24 | Heating mold for retreading the treads of pneumatic rubber tires |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE442226A (en) |
| DE (1) | DE726944C (en) |
| FR (1) | FR874604A (en) |
| NL (1) | NL55568C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE858307C (en) * | 1941-06-20 | 1952-12-04 | Peters Pneu Renova K G | Process for retreading the tread of pneumatic vehicle tires |
| DE1128131B (en) * | 1955-05-06 | 1962-04-19 | Wagener & Co Maschinenfabrik & | Heatable press plate for a device for repairing and making conveyor belts endless, especially plastic belts |
-
1940
- 1940-07-24 DE DEK158262D patent/DE726944C/en not_active Expired
-
1941
- 1941-07-05 NL NL102007A patent/NL55568C/xx active
- 1941-07-23 BE BE442226D patent/BE442226A/xx unknown
- 1941-07-23 FR FR874604D patent/FR874604A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE858307C (en) * | 1941-06-20 | 1952-12-04 | Peters Pneu Renova K G | Process for retreading the tread of pneumatic vehicle tires |
| DE1128131B (en) * | 1955-05-06 | 1962-04-19 | Wagener & Co Maschinenfabrik & | Heatable press plate for a device for repairing and making conveyor belts endless, especially plastic belts |
Also Published As
| Publication number | Publication date |
|---|---|
| NL55568C (en) | 1943-11-15 |
| FR874604A (en) | 1942-08-13 |
| BE442226A (en) | 1941-08-30 |
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